import matplotlib.pyplot as plt
from RandomWalk import RandomWalk


# 只要程序处于活动状态，就不断地模拟随机漫步
while True:
    # 创建一个Random实例，并将其包含的点都绘制出来
    rw = RandomWalk()
    rw.fill_walk()
    # 设置绘图窗口的尺寸
    plt.figure(figsize=(10, 6))

    plt.scatter(rw.x_values,rw.y_values,s = 1)
    # 轨迹颜色映射
    point_numbers = list(range(rw.num_points))    
    plt.scatter(rw.x_values, rw.y_values, c=point_numbers, cmap=plt.cm.Blues,
    edgecolor='none', s=15)
    # 突出起点和终点
    plt.scatter(0, 0, c='green', edgecolors='none', s=100)
    plt.scatter(rw.x_values[-1], rw.y_values[-1], c='red', edgecolors='none',s=100)
    # 隐藏坐标轴
    plt.axes().get_xaxis().set_visible(False)
    plt.axes().get_yaxis().set_visible(False)   
    

    # 画图
    plt.show()
    keep_running = input("Make another walk? (y/n): ")
    if keep_running == 'n':
        break